EY Global Delivery Services ( EY GDS) Technical Lead Interview Questions and Answers

EC2 instances are virtual servers that can be launched in the cloud.

• There are several types of EC2 instances, each optimized for different use cases such as compute, memory, storage, and networking.

• Some examples of EC2 instance types include t2.micro, m5.large, c5n.18xlarge, and r5a.4xlarge.

• EC2 instances can also be categorized by their pricing model, such as On-Demand, Reserved, and Spot instances.

XGBoost is implemented by installing the library, loading the data, defining the model parameters, training the model, and making predictions.

• Install the xgboost library using pip or conda

• Load the data into DMatrix format for efficient processing

• Define the model parameters such as learning rate, max depth, and number of trees

• Train the model using the fit() function

• Make predictions using the predict() function

Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class.

• Allows for code reusability by creating a new class based on an existing class

• Child class inherits properties and behaviors of the parent class

• Can have multiple levels of inheritance

• Example: Class Animal can be a parent class with subclasses like Dog and Cat inheriting its attributes and methods

Azure ADLS stands for Azure Data Lake Storage, a scalable and secure data lake solution for big data analytics.

• Azure ADLS is a cloud-based storage solution provided by Microsoft Azure.

• It is designed for big data analytics workloads, allowing users to store and analyze large amounts of data.

• ADLS offers features like high availability, scalability, and security for data storage and processing.

• It supports various data types including structured, semi-structured, and unstructured...read more

Security principles are guidelines that ensure confidentiality, integrity, and availability of data.

• Confidentiality - ensuring that data is only accessible to authorized individuals

• Integrity - ensuring that data is accurate and has not been tampered with

• Availability - ensuring that data is accessible to authorized individuals when needed

• Examples of security principles include least privilege, defense in depth, and separation of duties